Sam Byford, writing for The Verge:

A Toronto photography and graphic design studio has acquired a camera and photographic slides that allow the viewer to experience World War I in 3D. The Verascope is a series of handheld stereoscopic cameras designed and built in the 19th century by Jules Richard, and this unit, which was owned by the French army during World War I, remains in pristine condition today.

The photos are equally intriguing as they are haunting.